During the third week of development, which two systems begin to develop?
A. Nervous and digestive systems
B. Respiratory and lymphatic systems
C. Muscular and urinary systems
D. Nervous and cardiovascular systems
Answer: D
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The micturition reflex results in
A. contraction of smooth muscle in the bladder and relaxation of urinary sphincters. B. vigorous contraction of the smooth muscle of the large intestine and relaxation of anal sphincters. C. a decrease in blood pressure due to a slowing of heart rate. D. retention of urine and feces by relaxing some muscles and contracting others.
What provides arteries with tensile strength?
a. elastin fibers b. collagen fibers c. glucosamine d. smooth muscle e. valves
The hormone erythropoietin is produced by the ____________________
Fill in the blank(s) with correct word
If the SA node is damaged, nodal rhythm is sufficient to sustain life
Indicate whether the statement is true or false